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/*
 * SmartGWT (GWT for SmartClient)
 * Copyright 2008 and beyond, Isomorphic Software, Inc.
 *
 * SmartGWT is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.  SmartGWT is also
 * available under typical commercial license terms - see
 * http://smartclient.com/license
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */

import com.smartgwt.client.data.DataSource;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.grid.ListGrid;
import com.smartgwt.client.widgets.grid.ListGridRecord;
import com.smartgwt.client.widgets.grid.events.RecordDoubleClickEvent;
import com.smartgwt.client.widgets.grid.events.RecordDoubleClickHandler;
import com.smartgwt.client.widgets.layout.VLayout;
import com.smartgwt.sample.showcase.client.data.ItemSupplyXmlDS;
import com.smartgwt.sample.showcase.client.data.SupplyCategoryXmlDS;

public class NestedGridSample implements EntryPoint {
    

    private ListGridRecord lastOpenedRecord;

    public void onModuleLoad() {

        VLayout layout = new VLayout(20);

        final ItemSupplyXmlDS itemSupplyXmlDS = ItemSupplyXmlDS.getInstance();

        final ListGrid categoryGrid = new ListGrid();
        categoryGrid.setWidth(600);
        categoryGrid.setHeight(400);
        categoryGrid.setDataSource(SupplyCategoryXmlDS.getInstance());
        categoryGrid.setAlternateRecordStyles(true);

        categoryGrid.addRecordDoubleClickHandler(new RecordDoubleClickHandler() {
            public void onRecordDoubleClick(RecordDoubleClickEvent event) {
                showDetailGrid(categoryGrid, itemSupplyXmlDS);
            }
        });

        categoryGrid.fetchData();
        layout.addMember(categoryGrid);

        IButton showDetail = new IButton("Show Detail Grid");
        showDetail.setWidth(140);
        showDetail.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                showDetailGrid(categoryGrid, itemSupplyXmlDS);
            }
        });

        layout.addMember(showDetail);

        IButton hideDetail = new IButton("Hide Detail Grid");
        hideDetail.setWidth(140);
        hideDetail.addClickHandler(new ClickHandler() {
            public void onClick(ClickEvent event) {
                if (lastOpenedRecord != null) {
                    categoryGrid.closeRecord(lastOpenedRecord);
                    lastOpenedRecord = null;
                }
            }
        });

        layout.addMember(hideDetail);
        layout.draw();
    }

    private void showDetailGrid(ListGrid categoryGrid, DataSource itemSupplyXmlDS) {
        ListGridRecord record = categoryGrid.getSelectedRecord();
        if (record != null) {
            categoryGrid.openRecordDetailGrid(record, itemSupplyXmlDS);
            lastOpenedRecord = record;
        }
    }

}
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